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[[Image:Arthropod classifiation.jpg|thumb|right|150px|Arthropod Classification - copyright nabrown RVC]]
[[Image:Arthropod classifiation.jpg|thumb|right|150px|Arthropod Classification - copyright nabrown RVC]]
[[Image:Insect Head and eyes.jpg|thumb|right|150px|Alan Hedley]]
[[Image:Insect Head and eyes.jpg|thumb|right|150px|Alan Hedley]]
[[Image:Insect Eyes.jpg|thumb|right|150px|Alan Hedley]]
The phylum arthropoda is divided into several subphylums including Chelicerata (which includes the arachnids), Myriapoda, Hexapoda (which includes the insecta), Crustacea and Trilobitomorpha. These are then divided into many classes. The two of major veterinary importance are the insecta and [[Arachnida|arachnida]] classes.
The phylum arthropoda is divided into several subphylums including Chelicerata (which includes the arachnids), Myriapoda, Hexapoda (which includes the insecta), Crustacea and Trilobitomorpha. These are then divided into many classes. The two of major veterinary importance are the insecta and [[Arachnida|arachnida]] classes.